Straddle-row cultivator



S. K. DENNIS. STRADDLE 'now CULTIVATOR.

APPLICATION FILED APR. 30, 1915.

1,3 ,934, Patented Aug. 30, 1921.

3 $HEETS-SHEET I.

Patented Aug. 30, 1921'.

3 SHEETS-SHEET 2' S. K. DENNIS.

STRADDLE ROW CULTIVATOR.

APPLICATION FILED APR.30. I915.

1,388,934. Patented Aug. 30, 1921 a swans-sues? 3.

17211672207; flwmwl K ezmz'pj SAMUEL xl DENNISJOF'UCHICAGO,ILLINOIS;TASSIGNOR; IBY' MEsNnlAssIeNMENTsj To INTERNATIONAL I nmvnsrrna company,1A: CORPORATION or and simplify the operation and construction of suchdevices, particularly-the type of culin connection with a pivot pole;seat-guide cultivator a mounting for the beams where by they arecausedto move laterally in partivator shown in patent to Tinsman, No.1,025,220, May 7, 1912. 1 c

In carrying out my invention I employ allel relation, and an improvedconnection between the beams and pivotpole'for inoving the formerlaterally when" the pole is angled to change the course of-thecultivator, said connection being adjustable so that Y Y the beams maybemoved independentlyfof the pole'and of each other-{ v One form whichmyinvention may assume is exemplified in the following description andillustrated in the accompanying drawin ,i'n wl1ich" at Figure 1 showsavertical central sectional fview of: a "cultivator embodying myinvention; d

Fig. :2 shows a fragmentary'view in plan of the improved oonnectionemployed between thep'ivot pole'and 'the beams a Fig. 3"shows a detachedview in elevation of saidconnecting means?" V c Fig. t is a plan view ofthe cultivator em bodying my invention; and s Fig.- 5 isa plan viewshowing theytongue angled. j I f i Referring in detail to the drawing,it will be seen that I employ a cultivator comprising ground wheels 10,and a main frame 11, to which is pivoted at 12a pole 13.: The rear endof the pole h'as a sliding connection 14 with the main frame; and'a seatsupport 15 is pivotally and slidably carried upon the arched axle 16 ofthe ground wheels and has its forward end pivotally connected tothe rearend of-the ole by means offa vertically arranged pivot olt l7 passingthrough the pole andentering'a' pivot plate 18. This plate hasupstanding ears -1 9,-to which the seatsupport is pivoted forlmovementin a miss ae j esmvwos; A v

Application filed A riieo, 1915. seriaina'ame.

NEW JERSEY;

Specification of letters Patent. P atentedilu g. 30, 192 1 -verticalplane, the latter movement of the seat support being desirableforfolding the seat over the pole. The'rear end of the '-sup port 15carriesa seat member 20, which is adjustable are and aft in Beams 21,carrying shovels 22, or other earth working devices, are suspended attheir for- "ward ends: from the frame of the/cultivator} 7 each bymeansof, a pendent bail-rod 23 carthe usual way.

ried for oscillating -movementin" bearings 24 arranged on the axleandforward end of the main frame. A horizontally arranged 'IEATENT,orFICE crankrrod 25, pivotally' connected to the a wheel spindle andadjacent beam, transmits a push motlon to the beam and swings'freelyabout its pivots to permit lateral shifting of the beam, the bail-rodacting to hold the beam in fore and aft alinement.

The rear 2 end of the bail member 23 has a 'sli dable con-* nection withthe beam so that said beam may be adjusted vertically by means of alever 26 or other raising device. The tool carrying beams 21 at theirrear ends, are suspended from the levers 26by' links 261. Theselinks areasnsual provided with operating handles and have pivotal connections ateach end respectively with the; levers 26 and the the upper-ends oflevers 26, and also-to permita longitudinal swinging motion, of levers26 and links 261 will beseen that theib'eams2l will beheld -23, andwillalwaysvmaintain their parallel such'as to permit raising and lowering ofthe beams, and the operation of the pivot beams 21. "The pivotalconnections are'arranged to permit the beams to swing laterally aroundthe pivots between links 261 and j p when operated to lift or'lower'th'e-beams 2 h I .i I s F-rom -the description thus far given .itl

in alinement bythe" pendent bail members am no jmaaer whattheir positionof lateral adjustment maybe. The connections are-1 9 5 pole andse atguide is toi change the course of the cultiva'tor independent of thedirection of travel of the-"draft animals.

lVith no con'nection between the movable pol'e'or seat support and thebeams, it is apparent that the ultimate object ofangling the pole, whichis to shift the ground tilling members laterally, will be accomplishedindirectly and slowly that is to say, the frame of the cultivatorwillfirst shift its course and the 'bea mswill thereupon trail slowly inthe direction of movement of the frame. Such an operation, obviously, isnot sufiiciently positive and certain to afford an accurate control ofthe beams. I have, therefore, provided a simpleyoke connection betweenthe pivot pole and seat support and the beams whereby, as the rear endof the pole isswung around to change the course of the machine,

- the beams will be positively and quickly moved in the same direction.

This connection comprises a yoke ncluding two members 27, having theirouter-ends slidably and pivotally connected to the front pendentportions of the bail members 23 and projecting rearwardly and spannlngthe pole, where their inner ends ,overlap and connect with thepivot-platej18 between the seat support and pole. Theconnection betweenthe plate 18 and yoke is by means of a vertical stud 2S mountedupon-theforward end of the plate in front of the pivot bolt 17, and upon thisstud is fitted a clip member 29, which clip member is connected, bymeans of a bolt 30, to the overlapping inner ends the yokemembers. Theinner ends of the yoke members are looped above theIpivot bolt and areagainconnected,

by means of an adjusting bolt'31 passing through suitable, openings orslots 32 formed in the ends of said oke members. a y

By suitable adjustment of the bolt 31 the lower outer ends of the yokemembers may be moved together or apart,-s\v1ng1ng about the bolt 80, andin this way the relative distance between the members of the gang onwhich the yoke member is carried may be adjusted. The bolt 31 will alsolock the yoke members so that, as they seat sup-port is moved to swingthe pole from one side to the other,the yoke, being carried thereby,will act positively to shiftthe shovel beams bodily laterally'in rigidalinement. On ac count of the position occupied by the yoke member thebeams will in reality be moved farther than the rear end of the pole.This follows from the fact that the stud member .28 which carries theyoke swings about the pivot bolt 17 and receives a greater movement whenthe seat is shifted than does the pivot itself.

Should ,it positive lateral shifting of the shovel beams,

it is only necessaiyfor the operator to reof the beams, it is onlynecessary for him to be desired to discontinue the lift- 116 yoke,freeing the 'clip member 29 I from the stud 28, and the desiredadjustment is accomplished. Movementof the'pole will not then impartapositive; and direct movement of the yoke, the latter sliding freelyupon the upper'surface of the pole. In this p'osition of the yoke itmaybe used to take the place of the ordinary jockey arch to hold thebeams infixed relation, or may,'as before i 7 indicated, be ii nlatchedto permit free and independent swinging of the beams,

Enough of the possibleuses of my invention have been mentioned toindicate the importance thereof. *In the normal operation of the devicewith the yoke members :27

secured together at their upper ends, a lat' eral motion of beams 21'iseffected by swinging the seat lever 15 due to pressure applied to thefootrest 211 on one of the beams: The beams swing from the pivotalconnections between levels 26 and links 261 and the bearings 24 of bails23. The thrust bars 25 swing around theirpivotal connections with theframe of the machine at a. point (near the wheel axles. --The bails 23are free to move longitudinallyin their bearingsiQeL to permit thehorizontal arc motion ofythrust bars 25. 'The yoke members 27 may,without pivotal action, move later'allywith the tool beams 21 and .theadjoining ends of the seat lever and tongue, but the tool beams may beshifted laterally independently of motion of the seat lever andtongue,.in;which case yoke members 27f swing around bolts 30. Thisresults'in one of the yoke members sliding upwardly, along. the forwarddepending arm of one of the bails 23 Vwhile the opposite yoke member. 27moves: downwardly along the forward depending armof the remaining bail.Y

While I have shown and described butone form of my invention herein, itshould be understood, nevertheless, that it is susceptible ofmodification and, therefore, many changes maybe resorted to in theconstruc-' tion and arrangement of the. several-parts without departingfrom the spirit thereof {as disclosed inthe apppended claims.

WhatI claim as; new is: I 1. In a wheeledcultivator, a frame,cultivatorbeams connected to the frame by laterally shiftable means includingpendent members, a guiding member pivotally supported between itsendsfor lateral swing: ing movement on the frame, a pivot member on theforward end of the guiding. member, and a yoke supported on said pivotmember and having its branches slidably connected to said pendentmembers. a

2. In awheeled cultivator,;a frame, 'cultivator beams connected to theframe by laterally shiftable means. including pendent members, a guidingmember pivotally sup.- ported between its ends for lateral swingingmovement on the frame, a plate on the 'forward end of said guidingmember, provided members, a draft pole pivoted between its ends to thefront of the frame and having its rear end supported for lateralmovement on the frame, a guiding member pivotally supported on the frameto the rear of said pole, a plate connected to the forward end of theguiding member and connected to the rear end of said pole on a verticalpivot, and a yoke provided with a part pivotally mounted on said plateand having its branches slidably connected with said pend ent members.

4; In a wheeled cultivator, a frame, cultivator beams connected to theframe by lat- V erally shiftable means including pendent members, adraft pole pivoted between its ends to the front of the frame and havingits rear end supported for lateral movement on the frame, a guidingmember pivotally supported on the frame to the rear of said pole,

a plate to which theforward end of the guiding member iswhorizontallyhinged and to which the rear end of the pole is connected on a verticalpivot, and a yoke provided with a clip engaging a vertical pin on.

said plate and having its branches slidably connected to said pendentmembers.

' 5. In awheeled cultivator,*a frame, cultivator beams connected to theframe by laterally shiftable means including pendent members supportingthe front end of the beams, a rearwardly projecting guiding membersupported between its ends for lat era-l swinging movemnt on the frame,a plate on the forward end of the guiding member provided with avertical stud, a clip on said stud having a forwardly and downwardlyinclined face, and a yoke pivoted on the inclined face of the stud. andhaving its" branches slidably connected tosaid pendent members.

In testimony whereof I aflix my signature, in the presence of twowitnesses.

v SAMUEL K. DENNIS.

Witnesses: i

C. H. MANGOLD, EVAN EVANS.

